Ceramic heater



FIG. 1 is a front, top, perspective view of a ceramic heater showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a right side elevational view thereof.

The cross-hatching represents screening and is understood to extend uniformly throughout the areas represented. 

The ornamental design for a ceramic heater, as shown and described. 